Nozzle



A 11, 19347 E w. SHUGART E-r AL NOZZLE Filed Jan. 20, 1934 BYk Patented Dec. 11, 1934 1,983,820

TED 'PATENT OFF-IE 1.Ernest'IW. Shugartgf-Kalamazoo Township, 4Kalaimazoo '1 County, and Henry '.Van .Dam, .Kalamazoo, ='Mich. f

Applicationjanuary 20, 1834, Serial 15105707524 11 Claims. (Cl. 221-100) This invention relates to` nozzles-providedwith -,1 O. An relongated cylindrical head 11 is threaded .-iautomatic. check valves for use with dispensing into the'end of ythe neckthe outer end of the head pumps of thetype disclosed :by the vcopending being.Y closed as indicated at `12. The head isproapplicationvof Ernest `W. Shugart, Serial No. .videdwithopposedwall ports13, 13 spaced from v5667,17?, filed April 21,1933. its outerend and'below the annular external 5 VThemain objects of our invention are: `bearng'flange 14.

First, to provide an improved nozzle having An elongatedcylindricalcup 15 nts within the check valve means automatically responsive to headfor reciprocating longitudinal movement and internal pressureand controlled thereby vand isy provided with opposed wall ports 16, 16 for l which can be opened only with difliculty sothat registry with thewall ports inthe` head when the l0 unauthorized operationis avoided. -cup is actuated to its fully advanced position. Second, to provide apiston valved nozzle of this .Such position is determined by the coaction of character which is simple and economical in its -the inner endsof the opposed longitudinal tongues parts, and efficient and effective in operation. 17, 17 on the cup with those of the opposed longi- Further objects relating to` details ,-andeconotudinal grooves 18,18 in the head 11, the grooves l5 -mies of our invention will appear from the descripand tonguesv extending inwardly from the inner tion to follow. A structure Which is ka preferred ends of the parts and terminating medially thereembodiment of our invention is illustrated in the of. vThis arrangement prevents relative rotative accompanying drawing, in which: movementY of the parts Without interfering With 20 Fig. 1 is a fragmentary View in side elevation of their longitudinal -movement except to limit the 20 a dispensingpump provided with a nozzle kernsame,as pointed out above. A cup retracting bodying the features of our invention. v, compression yspring .19 is disposed between` the Fig. 2 is an enlarged fragmentary section ofthe bottom of the cup and the bottom of the head to nozzle. yurge the cup inwardly to close the Wall ports Fig. 3 isa transverse section on line 3--3A of thereof, aS Clearly llllstmtedrby Fig. 2- 25 Fig. 2. The head l1 is encased in a sleeve 20 compris- The parts are identified by their numerals of `ing an inner. cylindrical member 21 and an outer reference Which are the same throughout the cylindrical member 22 threaded therein. The several views. inner cylindrical member21has an annular in- Referring to the drawing, 1 is an oil pump proternal bearing ange 23 atv its inner end coact- 30 vided with a transparent cylinder 2 for the piston ing with the head and abutting the end of the 3, the latter vbeing*reciprocatedby the motor 4. neck .9. The outer cylindricalv member has an The energizing'circuit of the motor .4 includes the internal flange 24 at its outer end `abutting the manually operable switch 5 on the nozzle 6 and outer end 12 of the head and providing an end a supervisory control 7` by means of which the port 25 ttingly receiving the outer end projec- 35 pump can be set to deliver apredetermined quan- ,tion 26 of said head. tity of oil to the nozzle through the operation of The .bearing flanges 23 and 14 are provided the piston 3. The details ofsuch supervisory con-l .With annulargrooves 27 for the sealing rings trol are disclosed and claimed in the copending or gaskets 28. Such rings act to prevent the 40 application ofv Henry VanDam flied concurrently leakage of oil Without interfering with the rela l0 herewith and also inthe aforesaid patent applicative movement of the parts. tion. The pump is adapted to` deliver a 'fixed A sleeve retracting Vcompression spring 29 is quantity of uid such as a quarton each advance arranged on the head 11.Within the sleeve 20 stroke of the piston. Such quantity is predicated between the external .bearing flange 14 of the '15 upon the connections between the nozzle6 and the head and the internal bearing flange 23 at the cylinder 2, such as the hose 8, being full ofthe inner end of the inner sleeve member 21 for fluid prior to the beginning of the advance stroke urging the vsleeve inwardly of the head to close of the piston. the end-port 25 thereof. To insure the connections being full, we provide -With the parts arranged in this manner, when an improved nozzle which is automatically rethe manually operable lever 30 is grasped with 50 l sponsive to the pressure of the uid in the system, theV neck 9, the switch 5 is closed, which results but which prevents unauthorized or surreptitious Iin the .operation of the motor 4. The motor eledraining of the hose 8 without disassembling the vatesthe piston 3 and supplies the fluid through saine. Our improved nozzle comprises a curved thehosea to the neck 9 with sufficient pressure .55 neck9 .terminating in an internally tl'lreaded;end tofrst actuatev the cup 11 against thevforce of .55

its retracting spring 19 to register its wall ports 16, 16 with the wall ports 13, 13 in the head 11 and second to aotuate the sleeve 20 against the force o1 its retracting spring 29 to open its outer end port 25 through which the fluid, in this case oil, is nnally ejected from the nozzle 6. The number of strokes made by the piston 3 is controlled by the supervisory control '7 as pointed out above. Inasmuch as the latter forms nopart of the present invention, it is not described in detail here, but reference is made above to a copending application covering this feature.

With our improved dispensing nozzle, it is difheult for an unauthorized person or a dishonest attendant to surreptitiously drain the oil from the hose 8 by manipulating the nozzle. In prior nozzles, such as those using simple check valves, it was possible for a dishonest attendantto drain the hose to which the nozzle was attached by unseating the check valve through the discharge opening in the outer end of the nozzle. With our improved nozzle, such improper manipulation is obviated by virtue of the inner cup 15 which is responsive only to the fluid pressure within the system. Referring to Fig. 2, it will be seen that the unseating of the closure 26 from the port 25 will not result in the draining of the hose, because the ports 16 of the internal cup l must register with the parts 13 of the head 11 before oil is delivered to the port 25. It isV very difficult to manipulate the cup without completely disassembling the nozzle. A full hose is thus assured at the time of each operation and the customer receives full measure as indicated by the strokes of the piston 3 through the transparent cylinder 2.

Various changes and modications may be made in the details of construction and design of the above specifically described embodiment of our invention without departing from the spirit thereof. We desire to claim the invention specifically and broadly as provided in the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

l. A nozzle comprising in combination, a support terminating in an internally threaded end, an elongated cylindrical head threaded into the end of said support and having an outer end projection of reduced diameter, opposed wall ports spaced from its outer end, an annular external bearing flange spaced above said ports, and opposed internal longitudinal grooves extending inwardly from its inner end and terminating medially thereof, an elongated cylindrical cup tting within said head for reciprocating longitudinal movement and having opposed wall ports for registry with the wall ports in said head, and opposed external longitudinal tongues extending inwardly from its inner end for coaction with the grooves in said head to prevent relative rotative movement between the head and cup and to limit the outward travel of the cup relative to the head, a cup'retracting compression spring disposed between the bottom of the cup and the bottom of the head to urge the cup inwardly of the head to cover the wall ports thereof, a sleeve comprising an inner cylindrical member having an annular internal bearing ange at its inner end coacting with said head and abutting the end of said support, and an outer cylindrical member threaded within said inner member and having an internal ange at its outer end abutting the outer end of said head and pro-H viding an end port ttingly receiving the outer end projection of said head, a sleeve retraoting compression spring arranged on said head within said sleeve between the external bearing ange of said head and the internal bearing flange at the inner end of said inner sleeve member for urging said sleeve inwardly of said head to close the end port of said head, and manually regulatable means for supplying fluid to said support under suflicient pressure to first actuate said cup against the force of its retracting spring to register its wall ports with the wall ports in said head and second to actuate said sleeve against the force of its retracting spring to open its outer end port through which the fluid is naiiy ejected from the nozzle.

2. A nozzle comprising in combination, a support, an elongated cylindrical head threaded into the end of said support and having an outer end projection of reduced diameter, opposed wall ports spaced from its outer end, and an annular external bearing iiange spaced above said ports, an elongated cylindrical cup fitting within said head for reciprocating longitudinal movement and having opposed wall ports for registry with the wall ports in said head, a cup retracting compression spring disposed between the bottom of the cup and the bottom of the head to urge the cup inwardly of the head to cover the Wall ports thereof, a sleeve comprising an inner cylindrical member having an annular internal bearing flange at its inner end coacting with said head, and an outer cylindrical member threaded Within said inner member and having an internal flange at its outer end abutting the outer end of said head and providing an end port iittingly receiving the outer end projection of said head, a sleeve retracting compression spring arranged between the eX- ternal bearing ange of said head and the internal bearing flange at the inner end of said inner sleeve member for urging said sleeve inwardly of said head to close the end port of said head, and manually regulatable means for supplying iiuid to said support under sufficient pressure to first actuate said cup against the force of its retracting spring to register its wall ports with the Wall ports in said head and second to actuate said sleeve against the force of its retracting spring to open its outer end port through which the iluid is iinally ejected from the nozzle.

3. A nozzle comprising in combination, a support, an elongated cylindrical head threaded into the end of said support and having an outer end projection of reduced diameter, opposed wall ports spaced from its outer end, and an annular external bearing flange spaced above said ports, an elongated cylindrical cup ntting within said head for reciprocating longitudinal movement and having opposed wall ports for registry with the wall ports in said head, a cup retracting compression spring disposed between the bottom of the cup and the bottom of the head to urge the cup inwardly of the head to cover the wall ports thereof, a sleeve comprising an inner cylindrical member having an annular internal bearing ilange at its inner end coacting with said head, and an outer cylindrical member threaded within said inner member and having an internal iiange at its outer end abutting the outer end of said head and providing an end port fittingly receiving the outer end projection of said head, and a sleeve reti-acting compression spring arranged between the external bearing iiange of said head and the internal `bearing iiange at the inner end of said inner sleeve member for urging said sleeve inwardly of said head to close the end port of said head.

4. A nozzle comprising in combination, an elongated cylindrical head having an outer end projection of reduced diameter, opposed wall ports spaced from its outer end, an annular external bearing ange spaced above said ports, and opposed internal longitudinal grooves extending inwardly from its inner end and terminating medially thereof, an elongated cylindrical cup fitting within said head for reciprocating longitudinal movement and having opposed wall ports for registry with the wall ports in said head, and opposed external longitudinal tongues extending inwardly from its inner end for coaction with the grooves in said head to prevent relative rotative movement between the head and cup and to limit the outward travel of the cup relative to the head, a cup 4retracting compression spring disposed between the bottom of the cup and the bottom of the head to urge the cup inwardly of the head to cover the wall ports thereof, a sleeve having an annular internal bearing flange at its inner end coacting with said head and an internal ange at its outer end abutting the outer end of said head and providing an end port ttingly receiving the outer end projection of said head, and a sleeve retracting compression spring arranged on said head within said sleeve between the external bearing flange of said head and the internal bearing flange at the inner end of said inner sleeve member for urging said sleeve inwardly of said head to close the end port of said head.

5. A nozzle comprising in combination, an elongated cylindrical head having an outer end projection of reduced diameter, wall ports spaced from its outer end, an annular external bearing flange spaced above said ports, and opposed internal longitudinal grooves extending inwardly from its inner end and terminating medially thereof, an elongated cylindrical cup tting within said head for reciprocating longitudinal movement and having wall ports for registry with the wall ports in said head, and opposed external longitudinal tongues extending inwardly from its inner end for vcoaction with the grooves in said head to prevent relative rotative movement between the head and cup and to limit the outward travel of the cup relative to the head, a cup retracting spring acting to urge the cup inwardly of the head to cover the wall ports thereof, a sleeve having an annular internal bearing ange at its inner end coacting with said head and an internal flange at its outer end abutting the outer end of said head and providing an end port nttingly receiving the outer end projection of said head, and a sleeve retracting spring for urging said sleeve inwardly of said head to close the end port of said head.

6. A nozzle comprising in combination, a cylindrical head having wall ports spaced from its outer end, and an annular external bearing flange spaced above said ports, a cylindrical cup tting within head for reciprocating longitudinal movement and having wall ports for registry with the wall ports in said head, and means acting to prevent relative rotative movement between the head and cup and to limit the outward travel of the cup relative to the head, a cup retracting spring acting to urge the cup inwardly of the head to cover the wall ports thereof, a sleeve having an annular internal bearing ange at its inner end coacting with said head and an internal flange at its outer end abutting the outer end of said head and providing an end port, and a sleeve retracting spring for urging said sleeve inwardly of said head to close the end port of said head.

7. A nozzle comprising in combination, a head having a wall port spaced from its outer end, and an external bearing flange spaced above said port, a cup tting within said head for reciprocating longitudinal movement and having a wall port for registry with the wall port in said head, a cup retracting compression spring disposed between the bottom of the cup and the bottom of the head to urge the cup inwardly of the head to cover the wall port thereof, a sleeve having an internal bearing flange at its inner end coacting with said head and an internal flange at its outer end abutting the outer end of said head and providing an end port, and a sleeve retracting compression spring arranged on said head within said sleeve between the external bearing iiange of said head and the internal bearing flange at the inner end of said inner sleeve member for urging said sleeve inwardly of said head to close the end port of said head.

8. A nozzle comprising in combination, a head having a wall port spaced from its outer end, and an external bearing flange spaced above said port, a cup fitting within said head for reciprocating longitudinal movement and having a wall port for registry with the wall port in said head, a cup retracting spring, a sleeve having an internal bear* ing ilange at its inner end coacting with said head and an internal flange at its outer end abutting the outer end of said head and providing an end port, and a sleeve retracting spring.

9. A nozzle comprising in combination, a head having a wall port spaced from its outer end, and an external bearing flange spaced above said port, a cup tting within said head for reciprocating longitudinal movement and having a wall port for registry with the wall port in sai-d head, a cup retracting spring, and means for actuating said ports to control the discharge.'

l0. A nozzle comprising in combination, a head having a wall port spaced from its outer end, and an external bearing ilange spaced above said port, a sleeve having an internal bearing flange at its inner end coacting with said head and an internal ange at its outer end abutting the outer end of said head and providing an end port, and a sleeve retracting spring.

ll. A nozzle comprising in combination, a head having a wall port spaced from its outer end, and an external bearing ilange spaced above said port, a sleeve having an internal bearing flange at its inner end coacting with said head and an internal harige at its outer end abutting the outer end of said head and providing an end port.

ERNEST W. SHUGART. HENRY VAN DAM. 

